. 6ISÔ VEOBBAIi BBFOBTSB. �inyentor, August 26, 1863. This patent has expired, The specification says: "This invention consists in a stopper whieh always remains in the bottle, and whioh readily per- mits the introduction of any. fluid into the bottle, and at the eame time elïectually prevents any discharge of it except when desired, and which is particularly adapted to bottles oontaining soda-water, wines, and ail fluids having a gener- ating fixed air, as the greater the pressure from such cause the doser and tighter is the stopper. An important feature of the invention, which distinguishes it from ail previouely- applied- etoppers •whioh remain in the bottle, ia that it is inserted into the bottle throngh the neck without requiring the use of a separate or larger opening, or detachable cap, to permit its introduction. * • • The stopper represented
- * * consists of a small metallic or other stem, A,
upon the lower end of •which is fixed a rigid button or disk, B, which is made of such a size as ]ust to pass through the smallest part of the mouth or neck of the bottle. Close above the button or disk is secured to the stem. A, a smaller rigid ring or disk, C. Between these two disks is placed and held fast a disk or diaphragm of India rubber, felt, leather, or cloth, D, or any yielding substance, ■which should be some- what larger in its external diameter than the disk, B, — say geuerally of a diameter about as large again, and larger than the lower part of the interior of the neck of the bottle. To a stop or shoulder on the upper part of the stem, A, which ia long enough to project above the mouth of the bottle or vessel when the valve is in contact •with its seat, there ia attached or applied a helical wire spring, E, which covers the stem, A, for Bome little distance, and which need only be stiff enough to hold np firmly the stem. A, and cause the rubber or other diaphragm, D, to fit closely against the insida neck of the bottle." �The specilicatîon then describes two ways of supportîng the spring at its bottom. One is to enlarge the mouth or neck of the bottle from the bottom of the spring npward so as to form an edge or shoulder sufiBcient to support the spring. The other is not to enlarge the neck, but to olasp over the top ����
